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Air traffic control (ATC) units use the term "squawk" when they are assigning an aircraft a transponder code, e.g., "Squawk 7421". Squawk thus can be said to mean "select transponder code" or "squawking xxxx" to mean "I have selected transponder code xxxx". [6]
Non-discrete mode A code reserved use in mode S radar/ADS-B environment where the aircraft identification will be used to correlate the flight plan instead of the mode A code. [1] US: Used exclusively by ADS-B aircraft to inhibit mode 3A transmission. [3] US: Non-discrete code assignments in accordance with FAA Order JO 7110.65, 5-2.
Despite the crew "squawking" the emergency transponder setting of 7700, air traffic control could not locate the 747 on their radar screens. Owing to the high Indonesian mountains on the south coast of the island of Java, an altitude of at least 11,500 feet (3,500 m) was required to cross the coast safely.
Most general aviation aircraft in North America are told to "squawk 1200", meaning that they should set their transponder to 1200, whereas in the rest of the world, 7000 is used for this same purpose. Three special-purpose codes are also used, 7500 means the aircraft is being hijacked, 7600 means their voice radio set is not working, and 7700 ...
WASHINGTON (Reuters) -Air traffic control audio recorded the moments before and after an American Airlines regional passenger jet crashed with a U.S. Army Black Hawk helicopter in a midair ...
The aircraft was at an altitude of 498 feet (152 metres) flying at 161 knots (298 km/h or 185 mph) about 1.1 nautical miles (2 km or 1.3 miles) from the runway at the moment the flight recorders ...
Preliminary flight data from the deadly plane crash near Reagan National Airport in Washington, D.C., shows conflicting readings about the altitudes of a passenger jet and Army helicopter that ...
They initiated emergency protocols, including squawking 7700 on the transponder, and redirected the flight over the Caspian Sea toward Kazakhstan. However, after the crash, the aircraft was found to be riddled with holes in its fuselage some containing fragments of foreign metal objects, damage inconsistent with a bird strike but resembling the ...